/*
* @Author: Rosen
* @Date:   2018-02-01 16:19:36
* @Last Modified by:   Rosen
* @Last Modified time: 2018-02-04 21:39:59
*/
import React from 'react';
import MUtil from 'util/mm.jsx'
import Product from 'service/product-service.jsx'
import PageTitle from 'component/page-title/index.jsx';
import CategorySelector from './category-selector.jsx';
import FileUploader from 'util/file-uploader/index.jsx'
import RichEditor from 'util/rich-editor/index.jsx'

import './save.scss';

const _mm = new MUtil();
const _product = new Product();

class ProductSave extends React.Component {
    constructor(props) {
        super(props);
        this.state = {
            id: this.props.match.params.pid,
            name: '',
            subtitle: '',
            categoryId: 0,
            parentCategoryId: 0,
            subImages: [],
            price: '',
            stock: '',
            detail: '',
            status: 1 //商品状态1为在售
        }
    }
    componentDidMount() {
        this.loadProduct();
    }
    // 加载商品详情
    loadProduct() {
        // 有id的时候，表示是编辑功能，需要表单回填
        if (this.state.id) {
            _product.getProduct(this.state.id).then((res) => {
                let images = res.subImages.split(',');
                res.subImages = images.map((imgUri) => {
                    return {
                        uri: imgUri,
                        url: res.imageHost + imgUri
                    }
                });
                res.defaultDetail = res.detail;
                this.setState(res);
            }, (errMsg) => {
                _mm.errorTips(errMsg);
            });
        }
    }
    // 简单字段的改变，比如商品名称，描述，价格，库存
    onValueChange(e) {
        let name = e.target.name,
            value = e.target.value.trim();
        this.setState({
            [name]: value
        });
    }
    // 品类选择器变化
    onCategoryChange(categoryId, parentCategoryId) {
        this.setState({
            categoryId: categoryId,
            parentCategoryId: parentCategoryId
        });
    }
    // 上传图片成功
    onUploadSuccess(res) {
        let subImages = this.state.subImages;
        subImages.push(res);
        this.setState({
            subImages: subImages
        });
    }
    // 上传图片失败
    onUploadError(errMsg) {
        _mm.errorTips(errMsg);
    }
    // 删除图片
    onImageDelete(e) {
        let index = parseInt(e.target.getAttribute('index')),
            subImages = this.state.subImages;
        subImages.splice(index, 1);
        this.setState({
            subImages: subImages
        });
    }
    // 富文本编辑器的变化
    onDetailValueChange(value) {
        this.setState({
            detail: value
        });
    }
    getSubImagesString() {
        return this.state.subImages.map((image) => image.uri).join(',');
    }
    // 提交表单
    onSubmit() {
        let product = {
            name: this.state.name,
            subtitle: this.state.subtitle,
            categoryId: parseInt(this.state.categoryId),
            subImages: this.getSubImagesString(),
            detail: this.state.detail,
            price: parseFloat(this.state.price),
            stock: parseInt(this.state.stock),
            status: this.state.status
        },
            productCheckResult = _product.checkProduct(product);
        if (this.state.id) {
            product.id = this.state.id;
        }
        // 表单验证成功
        if (productCheckResult.status) {
            _product.saveProduct(product).then((res) => {
                _mm.successTips(res);
                this.props.history.push('/product/index');
            }, (errMsg) => {
                _mm.errorTips(errMsg);
            });
        }
        // 表单验证失败
        else {
            _mm.errorTips(productCheckResult.msg);
        }
    }
    render() {
        <div id="page-wrapper">
            <PageTitle title={this.state.id ? '编辑商品' : '添加商品'} />
            <div className="form-horizontal">
                <div className="form-group">
                    <label className="col-md-2 control-label">商品名称</label>
                    <div className="col-md-5">
                        <input type="text" className="form-control"
                            placeholder="请输入商品名称"
                            name="name"
                            value={this.state.name}
                            onChange={(e) => this.onValueChange(e)} />
                    </div>
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">商品描述</label>
                    <div className="col-md-5">
                        <input type="text" className="form-control"
                            placeholder="请输入商品描述"
                            name="subtitle"
                            value={this.state.subtitle}
                            onChange={(e) => this.onValueChange(e)} />
                    </div>
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">所属分类</label>
                    <CategorySelector
                        categoryId={this.state.categoryId}
                        parentCategoryId={this.state.parentCategoryId}
                        onCategoryChange={(categoryId, parentCategoryId) => this.onCategoryChange(categoryId, parentCategoryId)} />
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">商品价格</label>
                    <div className="col-md-3">
                        <div className="input-group">
                            <input type="number" className="form-control"
                                placeholder="价格"
                                name="price"
                                value={this.state.price}
                                onChange={(e) => this.onValueChange(e)} />
                            <span className="input-group-addon">元</span>
                        </div>
                    </div>
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">商品库存</label>
                    <div className="col-md-3">
                        <div className="input-group">
                            <input type="number" className="form-control"
                                placeholder="库存"
                                name="stock"
                                value={this.state.stock}
                                onChange={(e) => this.onValueChange(e)} />
                            <span className="input-group-addon">件</span>
                        </div>

                    </div>
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">商品图片</label>
                    <div className="col-md-10">
                        {
                            this.state.subImages.length ? this.state.subImages.map(
                                (image, index) => (
                                    <div className="img-con" key={index}>
                                        <img className="img" src={image.url} />
                                        <i className="fa fa-close" index={index} onClick={(e) => this.onImageDelete(e)}></i>
                                    </div>)
                            ) : (<div>请上传图片</div>)
                        }
                    </div>
                    <div className="col-md-offset-2 col-md-10 file-upload-con">
                        <FileUploader onSuccess={(res) => this.onUploadSuccess(res)}
                            onError={(errMsg) => this.onUploadError(errMsg)} />
                    </div>
                </div>
                <div className="form-group">
                    <label className="col-md-2 control-label">商品详情</label>
                    <div className="col-md-10">
                        <RichEditor
                            detail={this.state.detail}
                            defaultDetail={this.state.defaultDetail}
                            onValueChange={(value) => this.onDetailValueChange(value)} />
                    </div>
                </div>
                <div className="form-group">
                    <div className="col-md-offset-2 col-md-10">
                        <button type="submit" className="btn btn-primary"
                            onClick={(e) => { this.onSubmit(e) }}>提交</button>
                    </div>
                </div>
            </div>
        </div>
    }
}
export default ProductSave;